Home Aircraft Servicing Equipment Parts Air Start Unit (ASU) Parts

Electrical System

Sage Parts delivers premium electrical components engineered specifically for Air Start Unit applications, including starters, alternators, batteries, and complete wiring systems that meet or exceed OEM specifications. Our extensive inventory supports all major ASU manufacturers with parts designed for reliability in demanding airport environments. With industry-leading expertise in both legacy and current models, we provide electrical system solutions that enhance performance while reducing total cost of ownership. Trust Sage Parts for immediate availability, technical support, and quality-assured components that keep your critical ASU operations running efficiently.

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Forward/Reverse Switch for Guinault GB45/20V11, GB45/20V2, GC20V1, TS200V1 & Taylor-Dunn B0-254-48

SKU: SPP00242657
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Pressure Switch SPDT for TUG TR/TMD-150/180/250 Models

SKU: SPP00305742
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120 Ohm Resistor for TLD ACE-ASU-600-400, ACU-802, GPU-4090 & More GSE Models

SKU: SPP00398978
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In-Line Fuse Holder with Cap for TUG 660-28, 660-38, 660-44, 663-44, GT-110, MH, TR/TMD Series

SKU: SPP00192435
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8 Pin Relay Socket, 10 Amp, 300 Volt - Compatible with Stewart & Stevenson, TLD, Trilectron, TUG

SKU: SPP00192456
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Fuse ATO 20 for TLD, TUG, and Global Ground Equipment Models

SKU: SPP00178648
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AGC 20 AMP Fuse for Charlatte, Hobart, Stewart & Stevenson, Trilectron, Tug Models

SKU: SPP00162827
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10 PSI Pressure Switch | Compatible with Multiple Air Start Units & Cargo Loaders | OEM-Grade GSE Component

SKU: SPP00049721
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20 PSI Fuel Pressure Switch for TUG, Hobart & Stewart Stevenson GSE | Airport Ground Power & Air Start Units

SKU: SPP00049722
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SPDT Power Relay Replacement Part - Compatible with TUG GT-35 Pushback Tractor & TMD/TR-150/180/250 Air Start Units

SKU: SPP00048429
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3PDT Relay for TLD 828 High Loader, TLD PSC 2500 ASU, and Trilectron Heater

SKU: SPP00048431
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Aircraft GPU Temperature Switch | Compatible with Trilectron ASU/GPU & Spencer Heaters

SKU: SPP00031370

Forward/Reverse Switch for Guinault GB45/20V11, GB45/20V2, GC20V1, TS200V1 & Taylor-Dunn B0-254-48

SKU: SPP00242657

The Forward/Reverse Switch for Guinault GB45/20V11, GB45/20V2, GC20V1, TS200V1, and Taylor-Dunn B0-254-48 is a vital component designed to enhance the operational efficiency of your ground support equipment. This switch facilitates seamless directional...
Pressure Switch SPDT for TUG TR/TMD-150/180/250 Models

SKU: SPP00305742

The Pressure Switch SPDT for TUG TR/TMD-150/180/250 Models is an essential component designed to enhance the operational efficiency and reliability of your ground support equipment. This high-quality pressure switch is engineered specifically for...
120 Ohm Resistor for TLD ACE-ASU-600-400, ACU-802, GPU-4090 & More GSE Models

SKU: SPP00398978

The 120 Ohm Resistor is an essential component designed specifically for compatibility with a range of TLD Ground Support Equipment (GSE) models, including the ACE-ASU-600-400, ACU-802, and GPU-4090, among others. This high-quality resistor ensures...
In-Line Fuse Holder with Cap for TUG 660-28, 660-38, 660-44, 663-44, GT-110, MH, TR/TMD Series

SKU: SPP00192435

The In-Line Fuse Holder with Cap is a critical component designed specifically for TUG models 660-28, 660-38, 660-44, 663-44, GT-110, MH, and the TR/TMD Series. This product ensures reliable and efficient electrical connections, safeguarding your ground...
8 Pin Relay Socket, 10 Amp, 300 Volt - Compatible with Stewart & Stevenson, TLD, Trilectron, TUG

SKU: SPP00192456

The 8 Pin Relay Socket is a high-performance electrical component designed to meet the rigorous demands of the aviation ground support equipment (GSE) industry. With a robust capacity of 10 Amps and a voltage rating of 300 Volts, this relay socket...
Fuse ATO 20 for TLD, TUG, and Global Ground Equipment Models

SKU: SPP00178648

The Fuse ATO 20 is an essential component designed specifically for use with TLD, TUG, and Global Ground Equipment models, ensuring optimal performance and reliability in your aviation ground support operations. This high-quality fuse is compatible with...
AGC 20 AMP Fuse for Charlatte, Hobart, Stewart & Stevenson, Trilectron, Tug Models

SKU: SPP00162827

The AGC 20 AMP Fuse is engineered for optimal performance and reliability, specifically designed to meet the demands of various Aviation Ground Support Equipment (GSE) models, including Charlatte, Hobart, Stewart & Stevenson, Trilectron, and Tug. This...
10 PSI Pressure Switch | Compatible with Multiple Air Start Units & Cargo Loaders | OEM-Grade GSE Component

SKU: SPP00049721

This precision-engineered 10 PSI pressure switch delivers reliable pressure monitoring and control across multiple GSE applications, including Stewart + Stevenson and TUG air start units and TRANSACT cargo loaders. Built to meet rigorous aviation...
20 PSI Fuel Pressure Switch for TUG, Hobart & Stewart Stevenson GSE | Airport Ground Power & Air Start Units

SKU: SPP00049722

This professional-grade 20 PSI Fuel Pressure Switch delivers reliable pressure monitoring and control for critical ground support equipment operations. Engineered to meet precise specifications, this component ensures consistent fuel system performance...
SPDT Power Relay Replacement Part - Compatible with TUG GT-35 Pushback Tractor & TMD/TR-150/180/250 Air Start Units

SKU: SPP00048429

Looking for a reliable SPDT power relay for your TUG ground support equipment? This genuine replacement relay delivers consistent performance across multiple TUG applications, including the GT-35 pushback tractor and TMD/TR series air start units...
3PDT Relay for TLD 828 High Loader, TLD PSC 2500 ASU, and Trilectron Heater

SKU: SPP00048431

This industrial-grade 3PDT (Three-Pole Double-Throw) Relay serves as a critical control component for multiple premium GSE units, including the TLD 828 High Loader, TLD PSC 2500 Air Start Unit (ASU), and Trilectron Heater systems. Engineered to meet...
Aircraft GPU Temperature Switch | Compatible with Trilectron ASU/GPU & Spencer Heaters

SKU: SPP00031370

OEM-quality temperature switch engineered for precise thermal monitoring in Ground Support Equipment applications, specifically designed for Trilectron air start units (ASUs), ground power units (GPUs), and Spencer Industries heater systems. This robust...